Steps to Conditionally Apply Attributes in AngularJS

The below steps will be followed to conditionally apply attributes in AngularJS Applications.

Step 1: Create a new folder for the project. We are using the VSCode IDE to execute the command in the integrated terminal of VSCode.

mkdir condition-attr
cd condition-attr

Step 2: Create the index.html file in the newly created folder, we will have all our logic and styling code in this file. We can also create separate files for HTML, CSS, and JS (if needed).

Table of Content

  • Using ng-if and ng-class Directives
  • Using ng-disabled and ng-class Directives

We will understand the above concept with the help of suitable approaches & will understand its implementation through the illustration.

What is the best way to conditionally apply attributes in AngularJS?

In the AngularJS application, the best way to conditionally apply attributes to the elements mostly relies on the specific requirement and the actual nature of the attribute that we need to change. Mostly, considering the use cases, we can use the two common approaches for conditional attribute application by using the ng-if and ng-class directive and also the ng-disabled and ng-class to disable the elements conditionally. In this article, we will see both of the approaches with their implementation in terms of examples to conditionally apply attributes in AngularJS.

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Steps to Conditionally Apply Attributes in AngularJS

The below steps will be followed to conditionally apply attributes in AngularJS Applications....

Using ng-if and ng-class Directives

In this approach, we have conditionally applied the attributes and the styles using the “ng-if” and “ng-class” directives. Here in this example, the ng-if directive is used to dynamically add or remove the elements from the DOM based on the conditions. Also, this allows us to display an input field or edit a text when in edit mode. The “ng-class” directive is used to apply the CSS classes based on the values of specific item properties and mark the tasks completed or high-priority, etc. There is a user-defined function that is used to determine if the task’s due date is in the past. Overall, this approach is used to conditionally apply the attributes along with the styling of elements based on the conditions....

Using ng-disabled and ng-class Directives

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